<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../js/react.development.js"></script>
    <script src="../js/react-dom.development.js"></script>
    <script src="../js/babel.min.js"></script>
    <script src="../js/prop-types.js"></script>
</head>

<body>
<div id="test"></div>

<script type="text/babel">
    class Demo extends React.Component{
        render(){
            return(
                <div>
                    <input type="text" ref={c=>this.input1=c}/>
                    <br />
                    <button onClick={this.show}>点我提示左侧数据</button>
                    <br />
                    <input ref={c=>this.input2=c} type="text" onBlur={this.show2} placeholder='失去焦点提示数据'/> 
                </div>
            )
        }
        show=()=>{
            // console.log(this);

            const {input1} =this
            console.log(input1.value);
        }
        show2=()=>{
            const {input2} = this;
            console.log(input2.value);
        }
    }
    ReactDOM.render(<Demo/>,document.getElementById('test'))
</script>
</body>

</html>